First Solar FAQ: Thin-Film Modules, Q2 2024 Net Sales, and Delivery Certainty

I oversee module procurement for an EPC firm that builds utility-scale solar plants. In the last seven years, I've sourced panels for 20+ projects, including a few rush orders I never want to repeat. These are the First Solar questions I get most often from developers and contractors — answered the way I'd answer them on a project call, not in a marketing brochure.

Is First Solar just another solar panel manufacturer?

First Solar, Inc. (Nasdaq: FSLR) is a US-based module manufacturer, but it works differently from most of the big names. Instead of crystalline silicon, it makes thin-film cadmium telluride (CdTe) modules. Its product lines — Series 6 Plus and the newer Series 7 — are built for large ground-mount plants, not residential rooftops. By the end of 2024, the company's contracted backlog was above 66 GW, per its public announcements.

For procurement, that scale matters because the warranty is backed by real production volume (I'm talking about the corporate warranty, not a dealer promise). You're negotiating with a manufacturer that has a multi-year operating track record, which is exactly what lenders want to see.

What were First Solar's second quarter 2024 net sales?

According to First Solar's Q2 2024 earnings release (July 30, 2024), net sales were approximately $1.0 billion for the quarter. I'd rather you verify the exact figure in the release than trust my memory on the cents, but the top-line number is what matters for this discussion.

Beyond the revenue figure, I also watch gross margin and per-watt cost trends. Those tell you whether price pressure is eroding the manufacturer's profitability. A financially weak supplier is a delivery risk, even if the headline sales number looks fine. And when net sales climb while the backlog stays full, production slots tighten. In one 2023 project, we assumed a 10-week lead time; the realistic slot was closer to 16 weeks. Strong financial results are good for stability, but they mean you should lock production allocation earlier — especially when your COD date is tied to a PPA deadline.

Why does First Solar's degradation rate matter so much?

First Solar warranties Series 6 and Series 7 modules at an annual degradation rate below 0.5%, typically around 0.4% per year after the first year, depending on the product variant. When I say "degradation," I do not mean whether the module will fail; I mean how much of its original rated power it loses each year.

It's tempting to think a 0.1% difference is negligible. Over a 25-year PPA, it's not. For a 200 MW plant, a 0.1% annual degradation difference means tens of thousands of MWh of lifetime generation, which can be worth millions at merchant prices. So when I compare module offers, I model the guaranteed curve, not the datasheet headline. That's the number lenders underwrite.

Is First Solar Holding LLC the same as First Solar Inc.?

No. The module manufacturer is First Solar, Inc., the publicly traded company. If you search "First Solar Holding LLC" (or the plural "Holdings LLC"), you'll find businesses with similar-sounding names that are not affiliated with the manufacturer. It's easier than you'd think for a vendor database to mix these up.

I've seen a buyer almost issue a purchase order to the wrong entity because they searched by brand name instead of legal name. My rule: confirm the legal entity and tax ID on the contract, make sure the warranty is backed by First Solar, Inc. or a named subsidiary, and ask for the factory of origin. The same diligence applies if a bid says "equivalent to First Solar" — I've seen that wording end up in a supply agreement, and then the warranty table has a different manufacturer's name at the bottom. The logo on the datasheet is not the legal entity on the warranty. If a vendor claims to be First Solar but can't document an authorized relationship, treat it as a red flag regardless of price.

How does thin-film CdTe compare to crystalline silicon in real projects?

Not the way the efficiency numbers suggest at first glance. Series 6 Plus is a 460W-class module, and Series 7's datasheet efficiency is close to 20% — check the current official specs because the product keeps evolving. Premium c-Si panels still hold the efficiency crown, and on a tight footprint they can fit more DC per acre.

But CdTe's temperature coefficient is better than most c-Si modules, so output drops less in hot climates. The "thin-film is old technology" idea comes from an era when CdTe was genuinely behind — that's changed. In practice, the right choice depends on site irradiance, land cost, and the power price curve. The practical way to decide is to run both options through yield assessment software with actual site climate data. In hot regions like Texas or the Middle East, CdTe's temperature behavior visibly narrows the gap to higher-efficiency c-Si modules. On cold, high-latitude sites, I'd expect the opposite. I would not claim CdTe is better in every condition; that kind of oversimplification is how developers end up optimizing the wrong spec.

How does First Solar's backlog affect my delivery timeline?

As of early 2025, the company's contracted backlog is above 66 GW, per its announcements. That tells me two things. First, the company is financially solid — that's real revenue visibility, which banks like. Second, you're not the only buyer asking for production capacity. A manufacturer with years of contracted volume doesn't need to bend schedules to win your order.

From my side of the table, that translates into a simple planning rule: start the allocation conversation before you have final approval. Get a confirmed production slot in the supply agreement, including what happens if the slot slips. "Probably by October" is not a schedule. The worst position is a confirmed order with no confirmed delivery date.

When we negotiate supply agreements now, we include a delivery commitment clause with an agreed remedy if the date slips. It's not about being adversarial with the manufacturer; it's about making the delivery date a project critical-path item instead of a forecast. Vendors who push back hard on that clause are usually the ones who can't commit for a reason.

What happens if modules are damaged right before commissioning?

It happened to us in March 2024. A trucking issue left about 400 Series 6 Plus modules damaged at a 150 MW site. Mechanical completion was two weeks away, and the COD date was locked by the PPA. Normal replacement production would have taken eight to ten weeks. We had fourteen days.

We paid an expediting premium and split the order: a small batch air-freighted to keep the critical path moving, and the balance pulled from a later production allocation. The rush fees came to roughly $50,000 on top of the module cost.

The alternative — missing the PPA deadline — was an estimated $1.2 million in penalties and extended construction overhead. It stings to pay $50,000 in rush fees, but it stings a lot less than a $1.2 million delay. That's the comparison I make when someone tells me a cheaper quote is a better deal.

Is First Solar worth the price premium for utility-scale projects?

In my opinion, "premium" is the wrong frame. Comparing bids side by side across several projects made me realize that the module price per watt is a small part of the 30-year economic picture. What matters more is the degradation curve, the warranty's backing, and the cost of missing a deadline. On one early project, we picked a cheaper module and delivery slipped by eleven weeks. The idle crews and extended rentals cost more than we saved on the module price. That experience changed our policy: budget for certainty first, compare hardware second.

To be fair, my experience is mostly in US utility-scale plants. If your project is in a different market or much smaller, the right choice can be different. But the principle holds: a module that arrives on time and performs as guaranteed is worth more than one that's a few cents cheaper with schedule risk. If you ask me, that's not a premium — it's insurance.